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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Generic support for queying CPU info
4 *
5 * Copyright (C) 2007-2009 Michal Simek <[email protected]>
6 * Copyright (C) 2007-2009 PetaLogix
7 * Copyright (C) 2007 John Williams <[email protected]>
8 */
9
10#ifndef _ASM_MICROBLAZE_CPUINFO_H
11#define _ASM_MICROBLAZE_CPUINFO_H
12
13#include <linux/of.h>
14
15/* CPU Version and FPGA Family code conversion table type */
16struct cpu_ver_key {
17 const char *s;
18 const unsigned k;
19};
20
21extern const struct cpu_ver_key cpu_ver_lookup[];
22
23struct family_string_key {
24 const char *s;
25 const unsigned k;
26};
27
28extern const struct family_string_key family_string_lookup[];
29
30struct cpuinfo {
31 /* Core CPU configuration */
32 u32 use_instr;
33 u32 use_mult;
34 u32 use_fpu;
35 u32 use_exc;
36 u32 ver_code;
37 u32 mmu;
38 u32 mmu_privins;
39 u32 endian;
40
41 /* CPU caches */
42 u32 use_icache;
43 u32 icache_tagbits;
44 u32 icache_write;
45 u32 icache_line_length;
46 u32 icache_size;
47 unsigned long icache_base;
48 unsigned long icache_high;
49
50 u32 use_dcache;
51 u32 dcache_tagbits;
52 u32 dcache_write;
53 u32 dcache_line_length;
54 u32 dcache_size;
55 u32 dcache_wb;
56 unsigned long dcache_base;
57 unsigned long dcache_high;
58
59 /* Bus connections */
60 u32 use_dopb;
61 u32 use_iopb;
62 u32 use_dlmb;
63 u32 use_ilmb;
64 u32 num_fsl;
65
66 /* CPU interrupt line info */
67 u32 irq_edge;
68 u32 irq_positive;
69
70 u32 area_optimised;
71
72 /* HW debug support */
73 u32 hw_debug;
74 u32 num_pc_brk;
75 u32 num_rd_brk;
76 u32 num_wr_brk;
77 u32 cpu_clock_freq; /* store real freq of cpu */
78
79 /* FPGA family */
80 u32 fpga_family_code;
81
82 /* User define */
83 u32 pvr_user1;
84 u32 pvr_user2;
85};
86
87extern struct cpuinfo cpuinfo;
88
89/* fwd declarations of the various CPUinfo populators */
90void setup_cpuinfo(void);
91void setup_cpuinfo_clk(void);
92
93void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
94void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
95
96static inline unsigned int fcpu(struct device_node *cpu, char *n)
97{
98 u32 val = 0;
99
100 of_property_read_u32(cpu, n, &val);
101
102 return val;
103}
104
105#endif /* _ASM_MICROBLAZE_CPUINFO_H */